Contact-breaker for electrical ignition in internal-combustion engines.



G.HONOLD. CONTACT BREAKER FOR ELECTRICAL IGNITION ININTERNAL COMBUSTION ENGINES.

' APPLICATION FILED 11017.11, 1907.

1,061,613. I Patented May13, 1913.

WITNESSES I'M/ENTER 7Q 1 %%M xTm RN 5Y5 GO'ITLOB HONOIiD, OF STUTTGART, GERMANY.

CONTACT-BREAKER FOB-ELECTRICAL IGNITION IN INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented May 13,1913.

Application filed November 11, 1907. Serial a... 401,665.

T 0 all whom it may concern:

Be it known that I, Gorrmn HONOLD, engineer, a subject of the German Emperor, residing at 11 Hoppenlaustrasse, Stuttgart, Germany, have invented certain new and useful Improvements in Contact-Breakers for Electrical Ignition in Internal-Combustion Engines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it ap pertains to make and use the same.

This invention relates to interrupters qr contact-breakers for that class of internal.

combustion engines in which current is supplied from both a battery and a magneto generator to produce a spark in the igniter and the object of the invention is to provide a simple and compact device in which the contact-breakers for both circuits will be carried by the armature shaft of the magneto generator and positively operated dur ing each revolution thereof.

The invention consists in certain novel features of the device illustrated in the accompanying drawings as will. be hereinafter first fully described and .then particularly pointed out in the appended claims.

The accompanying drawings illustrate the invention, F igure 1 being an axial section, Fig. 2 a section at right angles to the axis through the part marked 0 and Fig. 3 a like section through the part marked B.

The apparatus consists of a box A mountedon the shaft a of the magneto within a casing B which is situated beside a third casing C. Casings B and C are supported frictionally on a tubular flange D project-- ing from the magneto frame co'axially with and surrounding the armature shaft. These casings B and C are normally stationary but are adapted to be turned upon the flange D for the purpose of timing the ignition b ri es the parts included in the battery cir. cuit while G containsthe parts in the magneto circuit. I

The magneto-interrupter carried by the box A is operated by collision of its contact lever with rollers, in the known manner,

as the box A rotates. Fig. clearly shows this interrupter the construction of which is.

well known; the contact lever 1 is held by spring 2 in the position for closmg the 011- means of arms E and F. Casing B car- -magneto having a tubular pro cuit atcontacts'3 and 4. When, however, the tail 5 of the lever collides with one of the rollers 7 there is a break between 3 and 4. The contact carrier 6 is insulated from the engine by the plate 6 one end being connected with one end of the armature windlng, the other end of the winding being electrically connected withthe said engine. There is thus obtained the advantage of a direct connection without intervention of sliding contacts. The box A also carries rollers 8 for actuating the battery inter rupter. Fig. 3 shows this interrupter clearly. The lever 11 carrying the cont-act. 9 is pressed inward away from the contact 10 by the spring 12 so that the circuit is normally open, but it is closed when one of the rollers -8 passes' over the surface 13 of the lever and thus presses it outward. The

second contact 10 is carried by a spring,

such as thesp ring l5 fixed to bolts 14. One of these bolts, insulated from the casing is formed outside the latter as a terminal 16 (Fig. 1) and serves for connecting one end of the battery .circuit, the other end being connected with the engine. Here also there is the advantage ofa direct connection without intermediate sliding contacts. Unless it is desired that the two systems should be separately adjustable, as shown, the casings B and C can be merged into one-in which theparts 7 and 9 to 16 are suitably arranged. Besides the aforesaid advantage of a direct connection of this combined interrupter with the circuit, there is the further advantage as compared with two separate interrupters that the manufacture is greatly simplified, the interrupter is more easily put in place and manipulated, and is more certain in action than is the case with the separate'interrupters hitherto used.

. Having -now particularly described and ascertained the nature of mysaid invention and in what manner the same is to be per formed, I declare that what I claim is: 1. The combination with the frame of a side, and an armature sha t projecting through the frame within said tubular projection', a plurality of casings frictionally. held on said projection, one of said. casings containing a. stationary interrupter, means carried by the armature shaft for operating said interrupter, a rotary interrupter on the end of the armature shaft within the other ection' on its of said casingsi and stationary means within said secon rotary interrupter.

'2. In electrlc igniting apparatus for internal combustion en es provided with magneto and battery igniting circuits, the combination, with the armature shaft, of an interrupter for themagneto mounted on and rotating with said shaft and provided with stationary actuating means angularly adjustable with relation to the axis of said armatureshaft, and a stationary interrupter. for the battery having magneto and battery igniting circuits, the

casing for operating said.

combination with the armature shaft, of an interrupter mounted on and rotating with said armature shaft cams adapted to actuate said rotating interrupter, a stationary housing angularly adjustable with relation to the axis of the said armature shaft and containing the cams, an interrupter for said battery, a stationary housing angularly adjustable with relation to the axis of said armature shaft and containing the batteryinterrupter, and cams adapted to actuate .said stationary interrupter mounted on and rotating with said armature shaft.

In testimony whereof I have hereunto affixed my signature in the presence of two witnesses. I

GQTTLOB HON OLD. Witnems:

ROBERT Boron, EnNns'r EATLEMANN. 

